Data Summary




Average Annual Precipitation (PRISM model) 1961 - 1990

2000 - U S Department of Agriculture


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API
REST:

WMS:




ADDITIONAL RESOURCES
n/a




ABSTRACT
This map layer shows polygons of average annual precipitation in the contiguous United States, for the climatological period 1961-1990. Parameter-elevation Regressions on Independent Slopes Model (PRISM) derived raster data is the underlying data set from which the polygons and vectors were created. PRISM is an analytical model that uses point data and a digital elevation model (DEM) to generate gridded estimates of annual, monthly and event-based climatic parameters